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    Impulse noise mitigation under out-of-band interference conditions
    81.
    发明授权
    Impulse noise mitigation under out-of-band interference conditions 有权

    公开(公告)号：US09419661B2

    公开(公告)日：2016-08-16

    申请号：US14886204

    申请日：2015-10-19

    Applicant: MaxLinear, Inc.

    Inventor： Andy Lo ,  Sugbong Kang

    IPC: H03H7/30 ,  H03K5/01 ,  H04B1/10

    CPC classification number: H04B1/1036 ,  H04B1/10

    Abstract: An impulse noise mitigation circuit (INMC) may set a cut-off frequency of each of two high pass filters to bound a frequency bandwidth of a desired signal, wherein a first of the two filters allows frequencies higher than the frequency bandwidth of the desired signal, and a second of the two filters allows frequencies lower than the frequency bandwidth of the desired signal. The INMC may compute and store a mean magnitude separately for a first signal response of the first filter and a second signal response of the second filter. The INMC may select the first filter for impulse noise mitigation when the mean magnitude of the second filter is greater than the mean magnitude of the first filter. The INMC may select the second filter for impulse noise mitigation when the mean magnitude of the first filter is greater than the second filter.

    Double down-conversion with multiple independent intermediate frequencies for E-band applications
    82.
    发明授权
    Double down-conversion with multiple independent intermediate frequencies for E-band applications 有权
    用于E波段应用的具有多个独立中频的双下变频

    公开(公告)号：US09407205B2

    公开(公告)日：2016-08-02

    申请号：US14580674

    申请日：2014-12-23

    Applicant: M/A-COM Technology Solutions Holdings, Inc.

    Inventor： Simon J. Mahon ,  James T. Harvey ,  Emmanuelle R. O. Convert

    IPC: H04B1/26 ,  H03D7/16 ,  H04B1/06 ,  H04B1/10

    CPC classification number: H04B1/126 ,  H03D7/16 ,  H04B1/06 ,  H04B1/1036 ,  H04B1/26 ,  H04B2001/1072

    Abstract: An apparatus includes a first receiver and a second receiver. The first receiver may be configured to generate a plurality of first intermediate frequency signals in response to a radio frequency (RF) input signal and a first local oscillator signal. The second receiver may be configured to generate a plurality of output signals in response to the first intermediate frequency signals. Each of the output signals is generated in an independent channel in response to a respective one of the first intermediate frequency signals and a respective second local oscillator signal.

    Abstract translation: 一种装置包括第一接收机和第二接收机。 第一接收机可以被配置为响应于射频（RF）输入信号和第一本地振荡器信号而产生多个第一中频信号。 第二接收机可以被配置为响应于第一中频信号而产生多个输出信号。 响应于第一中频信号和相应的第二本地振荡器信号中的相应一个，输出信号中的每一个在独立信道中产生。

    SIGNAL CANCELLATION OF AMPLITUDE/ANGLE MODULATION NOISE USING FEEDFORWARD AND FEEDBACK TOPOLOGIES
    83.
    发明申请
    SIGNAL CANCELLATION OF AMPLITUDE/ANGLE MODULATION NOISE USING FEEDFORWARD AND FEEDBACK TOPOLOGIES 审中-公开
    使用前向和反向拓扑信号消除振幅/角度调制噪声

    公开(公告)号：US20160218757A1

    公开(公告)日：2016-07-28

    申请号：US15009813

    申请日：2016-01-28

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Lawrence Herbert Zuckerman

    IPC: H04B1/10

    CPC classification number: H04B1/109 ,  H04B1/1036

    Abstract: A method for cancellation of amplitude modulation noise using feedforward or feedback topologies. The method is adaptable to cancel amplitude modulation noise (contamination) of an input signal, including: receiving an input signal including an amplitude modulation noise signal; demodulating the amplitude modulation noise signal to generate a baseband amplitude modulation noise signal; signal processing the baseband amplitude modulation noise signal to generate a amplitude re-modulation signal; and re-modulating the input signal based on the amplitude re-modulation signal to generate an output signal, the output signal having less amplitude modulation noise than the input signal. In a feedforward embodiment, the methodology includes: signal processing the baseband amplitude modulation noise signal based on signal inversion to generate the amplitude re-modulation signal; and feeding forward the amplitude re-modulation signal to re-modulate the amplitude re-modulation signal with the input signal. In a feedback embodiment, the methodology includes: receiving the input signal in a gain controlled amplifier, generating a gain-controlled output signal; detecting the amplitude of the amplitude noise modulation signal in the gain-controlled output signal to generate a feedback amplitude noise signal; integrating the feedback amplitude noise signal to generate a gain control signal; and adjusting the gain controlled amplifier based on the gain control signal, such that the gain-controlled output signal has less amplitude modulation noise than the input signal.

    Abstract translation: 使用前馈或反馈拓扑消除幅度调制噪声的方法。 该方法适于消除输入信号的调幅噪声（污染），包括：接收包括振幅调制噪声信号的输入信号; 解调幅度调制噪声信号以产生基带幅度调制噪声信号; 信号处理基带振幅调制噪声信号以产生振幅再调制信号; 并且基于幅度再调制信号重新调制输入信号以产生输出信号，该输出信号具有比输入信号更小的调制噪声。 在前馈实施例中，该方法包括：基于信号反转信号处理基带幅度调制噪声信号，以产生振幅再调制信号; 并且前馈振幅再调制信号以用输入信号重新调制幅度再调制信号。 在反馈实施例中，该方法包括：在增益控制放大器中接收输入信号，产生增益控制的输出信号; 检测增益控制输出信号中的幅度噪声调制信号的振幅，以产生反馈幅度噪声信号; 积分反馈幅度噪声信号以产生增益控制信号; 并且基于增益控制信号调整增益控制放大器，使得增益控制的输出信号具有比输入信号更小的调幅噪声。

    Adjacent channel optimized receiver
    84.
    发明授权
    Adjacent channel optimized receiver 有权

    公开(公告)号：US09398636B2

    公开(公告)日：2016-07-19

    申请号：US13871882

    申请日：2013-04-26

    Applicant: Ubiquiti Networks, Inc.

    Inventor： Robert J. Pera ,  Lance D. Lascari

    IPC: H04W84/12 ,  H04B1/10 ,  H04B1/28

    CPC classification number: H04W84/12 ,  H04B1/0075 ,  H04B1/1036 ,  H04B1/28 ,  H04B2001/1054 ,  H04W72/02

    Abstract: The present invention offers significant improvements in the performance of a radio receiver operating in an environment with high desired band interference. The present invention comprises a high selectivity RF circuit that is located between the antenna and the radio receiver, and utilizes superheterodyne technology to filter adjacent channel interference in the desired band frequency spectrum. This type of interference is problematic for IEEE 802.11 radio receivers that are implemented with the popular direct conversion radio receiver architectures. The present invention may be utilized in many types of radio receivers.

    SIGNAL TRANSMISSION AND RECEIVING METHOD, SYSTEM AND APPARATUS BASED ON FILTER BANK
    87.
    发明申请
    SIGNAL TRANSMISSION AND RECEIVING METHOD, SYSTEM AND APPARATUS BASED ON FILTER BANK 审中-公开
    信号传输和接收方法，基于滤波器的系统和设备

    公开(公告)号：US20160204822A1

    公开(公告)日：2016-07-14

    申请号：US14994021

    申请日：2016-01-12

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Bin Yu ,  Dalin Zhu ,  Pengfei Sun

    IPC: H04B1/40 ,  H04B1/10 ,  H04L25/03 ,  H04B1/71

    CPC classification number: H04B1/40 ,  H04B1/1036 ,  H04B1/7101 ,  H04L25/03343 ,  H04L27/264

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A signal transmission method based on a filter bank, includes obtaining by a transmitter pre-equalization information, wherein the pre-equalization configuration information indicates whether pre-equalization is enabled, if the pre-equalization configuration information indicates that the pre-equalization is enabled, generating by the transmitter pre-equalization coefficients according to a pre-equalization manner, and performing pre-equalization operation to transmission signals according to the pre-equalization coefficients, and performing modulation based on the filter bank.

    Abstract translation: 本公开涉及提供用于支持更高数据速率的第5代（5G）或5G通信系统超越第四代（4G）通信系统，例如长期演进（LTE）。 一种基于滤波器组的信号传输方法，包括由发射机预均衡信息获得，其中所述预均衡配置信息指示是否启用预均衡，如果所述预均衡配置信息指示所述预均衡被启用 ，根据预均衡方式由发射机预均衡系数产生，并根据预均衡系数对传输信号进行预均衡操作，并根据滤波器组进行调制。

    RADIO RECEIVER CIRCUIT, COMMUNICATION APPARATUS, AND ADAPTATION METHOD
    88.
    发明申请
    RADIO RECEIVER CIRCUIT, COMMUNICATION APPARATUS, AND ADAPTATION METHOD 有权
    无线电接收机电路，通信设备和适配方法

    公开(公告)号：US20160204813A1

    公开(公告)日：2016-07-14

    申请号：US14912091

    申请日：2013-08-16

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

    Inventor： Fenghao Mu

    IPC: H04B1/16 ,  H04B1/10 ,  H04W52/02

    CPC classification number: H04B1/1615 ,  H04B1/06 ,  H04B1/1036 ,  H04B1/18 ,  H04W52/0283 ,  Y02D70/1262 ,  Y02D70/40

    Abstract: A receiver circuit comprising a transformer arrangement comprising a transformer structure, multiple and distributed receiver units arranged to be connected to one and same antenna via the transformer arrangement and arranged to operate on the same frequency and bandwidth as each other, wherein the transformer arrangement is arranged to input the antenna signal and to output signals at different output ports for the respective receiver unit, and a combiner circuit arranged to combine outputs of the multiple receiver units such that the combiner circuit outputs a combined signal, and corresponding communication apparatus, method and computer program are disclosed.

    Abstract translation: 一种接收器电路，包括：变压器装置，包括变压器结构;多个和分布式接收器单元，被布置成经由所述变压器装置连接到同一个天线，并布置成在彼此相同的频率和带宽上工作，其中所述变压器布置被布置 输入天线信号并输出​​到相应接收机单元的不同输出端口的信号;以及组合器电路，被配置为组合多个接收器单元的输出，使得组合器电路输出组合信号，以及相应的通信装置，方法和计算机 程序被公开。

    LOW NOISE AMPLIFIER MODULE AND METHOD OF IMPLEMENTATION
    90.
    发明申请
    LOW NOISE AMPLIFIER MODULE AND METHOD OF IMPLEMENTATION 有权
    低噪声放大器模块及其实现方法

    公开(公告)号：US20160191092A1

    公开(公告)日：2016-06-30

    申请号：US14910672

    申请日：2013-08-08

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

    Inventor： Jichang LIAO ,  Xiaoliang DU

    IPC: H04B1/16 ,  H04B1/10

    CPC classification number: H04B1/1607 ,  H01P1/2053 ,  H04B1/006 ,  H04B1/1036 ,  H04B1/18

    Abstract: A high performance switch module to filter a radio frequency signal and to selectively connect to an output includes a filter unit and a plurality of switches. The filter unit has a filter configured to connect to the radio frequency signal and having a plurality of parallel output ports. The plurality of switches is connected between the plurality of parallel output ports and the output, the plurality of switches configured to connect to a control input to selectively connect an output port of the plurality of parallel output ports to the output and to selectively connect a remainder of the plurality of parallel output ports to a connection providing a substantially full reflection to the remainder of the plurality of parallel output ports of the filter unit.

    Abstract translation: 用于过滤射频信号并选择性地连接到输出的高性能开关模块包括滤波器单元和多个开关。 滤波器单元具有被配置为连接到射频信号并且具有多个并行输出端口的滤波器。 所述多个开关连接在所述多个并行输出端口和所述输出端之间，所述多个开关被配置为连接到控制输入端以有选择地将所述多个并行输出端口的输出端口连接到所述输出端，并选择性地连接其余部分 的多个并行输出端口连接到向滤波器单元的多个并行输出端口的其余部分提供基本上全反射的连接。

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